/// <summary>
/// Fetches all nodes (including non leaf nodes) which intersect the given bounds
/// </summary>
/// <param name="bounds"></param>
/// <returns></returns>
public IEnumerable<Node> NodesOverlappingBounds(BoundingBox bounds)
{
if (!bounds.Intersects(Bounds))
yield break;
yield return this;
if (_children != null)
foreach (var descendant in _children.SelectMany(c => c.NodesOverlappingBounds(bounds)))
yield return descendant;
}
/// <summary>
/// Checks whether the current BoundingSphere intersects a BoundingBox.
/// </summary>
/// <param name="box">The BoundingBox to check for intersection with.</param><param name="result">[OutAttribute] true if the BoundingSphere and BoundingBox intersect; false otherwise.</param>
public void Intersects(ref BoundingBox box, out bool result)
{
result = box.Intersects(this);
}
/// <summary>
/// Checks whether the current BoundingFrustum contains the specified BoundingBox.
/// </summary>
/// <param name="box">The BoundingBox to test for overlap.</param><param name="result">[OutAttribute] Enumeration indicating the extent of overlap.</param>
public void Contains(ref BoundingBox box, out ContainmentType result)
{
CreatePlanes();
var intersects = false;
for (var i = 0; i < PlaneCount; ++i)
{
PlaneIntersectionType planeIntersectionType;
box.Intersects(ref _planes[i], out planeIntersectionType);
switch (planeIntersectionType)
{
case PlaneIntersectionType.Front:
result = ContainmentType.Disjoint;
return;
case PlaneIntersectionType.Intersecting:
intersects = true;
break;
}
}
result = intersects ? ContainmentType.Intersects : ContainmentType.Contains;
}
/// <summary>
/// Checks whether the current BoundingSphere intersects with a specified BoundingBox.
/// </summary>
/// <param name="box">The BoundingBox to check for intersection with the current BoundingSphere.</param>
public bool Intersects(BoundingBox box)
{
return box.Intersects(this);
}
